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SIP VoIP Server Hosting on Offshore VPS
SIP (Session Initiation Protocol) is the backbone of modern internet telephony. Running your own SIP server - whether Kamailio, OpenSIPS, or a standalone softswitch - on offshore VPS infrastructure keeps your voice traffic outside surveillance-friendly jurisdictions. AnubizHost provides the unrestricted UDP ports, raw network throughput, and root access that professional VoIP deployments require.
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SIP Server Software Options
The open-source SIP ecosystem offers several production-grade options. Kamailio is a high-performance SIP proxy and registrar capable of handling hundreds of thousands of calls per second on commodity hardware - ideal for SIP trunk aggregation and SBC (session border controller) deployments. OpenSIPS offers a similar feature set with a different module architecture. PJSIP/PJPROJECT provides a C library for building custom SIP applications. For simpler setups, Baresip is a lightweight command-line SIP client/server. All of these install from package repositories on Debian or Ubuntu and run without proprietary dependencies. AnubizHost VPS plans give you the raw Linux environment to deploy whichever stack fits your requirements.
Port Configuration for SIP and RTP
A working SIP infrastructure needs UDP 5060 for SIP signaling, UDP 5061 for TLS SIP, and a wide RTP range (commonly 10000-65000 UDP) for audio streams. Many consumer and cloud hosting providers block or rate-limit UDP 5060 because of historical SIP abuse. AnubizHost applies no such restrictions - all UDP and TCP ports are open from the moment you provision your VPS. You are responsible for firewall rules to limit exposure; we recommend nftables with rate-limiting on the SIP registration port to block brute-force attacks. SRTP (Secure Real-time Transport Protocol) for encrypted audio is fully supported and adds no performance penalty on modern vCPUs.
Offshore Jurisdiction for VoIP Privacy
VoIP traffic metadata - who called whom, call duration, originating IP - is among the most revealing data a server generates. AnubizHost hosts in Iceland and Romania. Iceland is not a member of the Five Eyes, Nine Eyes, or Fourteen Eyes intelligence-sharing agreements. Romania, while an EU member, has a history of court challenges to broad surveillance mandates. In both jurisdictions, your hosting account is not classified as a telecoms operator and is therefore not subject to lawful interception obligations that apply to licensed carriers. Pair your offshore SIP server with SRTP audio encryption and TLS signaling for a complete end-to-end private VoIP stack.
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Why Anubiz Host
100% async — no calls, no meetings
Delivered in days, not weeks
Full documentation included
Production-grade from day one
Security-first approach
Post-delivery support included
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